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Page 2725 of 3787

NISSAN LATIO 2011 Service Repair Manual HOW TO USE THIS MANUALGI-21
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O PFR, RR Front, RearLH, RH Left-Hand, Right-Hand M/T Manual Transaxle/Transmission
OD Overdrive
P/S Power Steering
SAE

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NISSAN LATIO 2011 Service Repair Manual SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-25
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How to Perform Efficient Diagnos is for an Electrical IncidentINFOID:0000000005929728
WORK FLOW

SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-25
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How to Perform Efficient Diagnos is for an Electrical IncidentINFOID:0000000005929728
WORK FLOW
INCIDENT SIMULATION TESTS
Introduction
Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the
conditions present at the time of the incident. Doi ng so may help avoid a No Trouble Found Diagnosis. The fol-
lowing section illustrates ways to simulate the c onditions/environment under which the owner experiences an
electrical incident.
The section is broken into the six following topics:
• Vehicle vibration
• Heat sensitive
• Freezing
• Water intrusion
• Electrical load
SGI838
STEP DESCRIPTION
STEP 1 Get detailed information about the conditions and the environment when the incident occurred.
The following are key pieces of information required to make a good analysis:
WHAT
Vehicle Model, Engine, Transmission/Transaxle and the System (i.e. Radio).
WHEN Date, Time of Day, Weather Conditions, Frequency.
WHERE Road Conditions, Altitude and Traffic Situation.
HOW System Symptoms, Operating Conditions (Other Components Interaction).
Service History and if any After Market Accessories have been installed.
STEP 2 Operate the system, road test if necessary.
Verify the parameter of the incident.
If the problem cannot be duplicated, refer to “Incident Simulation Tests”.
STEP 3 Get the proper diagnosis materials together including:
• Power Supply Routing
• System Operation Descriptions
• Applicable Service Manual Sections
• Check for any Service Bulletins
Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments.
STEP 4 Inspect the system for mechanical binding, loose connectors or wiring damage.
Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness Lay-
outs.
STEP 5 Repair or replace the incident circuit or component.
STEP 6 Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inad-
vertently created a new incident during your diagnosis or repair steps.
Revision: May 2010
2011 Versa

Page 2730 of 3787

NISSAN LATIO 2011 Service Repair Manual GI-26
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SERVICE INFORMATION FOR ELECTRICAL INCIDENT
• Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the cond

GI-26
< SERVICE INFORMATION >
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
• Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the
problem.
Vehicle Vibration
The problem may occur or become worse while driving on a rough road or when engine is vibrating (idle with
A/C on). In such a case, you will want to check for a vibration related condition. Refer to the following illustra-
tion.
CONNECTORS & HARNESS
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently
shake each connector and harness while monitoring the sy stem for the incident you are trying to duplicate.
This test may indicate a loose or poor electrical connection.
HINT
Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector termi-
nals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs inter-
mittently, perhaps the problem is caused by corrosion. It is a good idea to disconnect, inspect and clean the
terminals on related connectors in the system.
SENSORS & RELAYS
Gently apply a slight vibration to sensors and relays in the system you are inspecting.
This test may indicate a loose or poorly mounted sensor or relay.
ENGINE COMPARTMENT
There are several reasons a vehicle or engine vibration could cause an e\
lectrical complaint. Some of the
things to check for are:
• Connectors not fully seated.
• Wiring harness not long enough and is being stressed due to engine vibrations or rocking.
• Wires laying across brackets or moving components.
• Loose, dirty or corroded ground wires.
• Wires routed too close to hot components.
To inspect components under the hood, start by verifyi ng the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previous ly explained. Using the wiring diagrams inspect the
wiring for continuity.
BEHIND THE INSTRUMENT PANEL
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
UNDER SEATING AREAS
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under s eating areas, inspect wire routing for possible damage or
pinching.
Heat Sensitive
SGI839
Revision: May 2010 2011 Versa

Page 2739 of 3787

NISSAN LATIO 2011 Service Repair Manual CONSULT-III CHECKING SYSTEMGI-35
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DescriptionINFOID:0000000005929730
• CONSULT-III is a hand-held type tester. When

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NISSAN LATIO 2011 Service Repair Manual GI-38
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LIFTING POINT
LIFTING POINT
Special Service ToolINFOID:0000000005929733
CAUTION:
• Every time the vehicle is lifted up, maintain the complete vehicle curb condition.
�

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NISSAN LATIO 2011 Service Repair Manual IDENTIFICATION INFORMATIONGI-43
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Model VariationINFOID:0000000005929740
Model code designations:
IDENTIFICATION NUMBER

Page 2748 of 3787

NISSAN LATIO 2011 Service Repair Manual GI-44
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IDENTIFICATION INFORMATION
VEHICLE IDENTIFICATION NUMBER ARRANGEMENT
1. Vehicle identification number (chas-
sis number) 2. Air conditioner specification label (if
equip

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NISSAN LATIO 2011 Service Repair Manual IDENTIFICATION INFORMATIONGI-45
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IDENTIFICATION PLATE
ENGINE SERIAL NUMBER
MR18DE (1.8L) and HR16DE (1.6L)
AUTOMATIC TRANSAXLE NUMBER
MANUAL T

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